Year	current US$
1980	636213266.59403
1981	664576817.982647
1982	627810243.713015
1983	707530241.607074
1984	611997092.314847
1985	460999326.076022
1986	529985077.625758
1987	677266055.497554
1988	745665984.670447
1989	750570513.020071
1990	890640940.133485
1991	1003536203.77682
1992	1114100748.91058
1993	1078062172.64699
1994	1108296164.14479
1995	1218019634.55224
1996	1154478942.5311
1997	1204876030.73408
1998	1058839986.55298
1999	1074652476.17638
2000	1012749147.36511
2001	1091628009.89134
2002	1021942045.07566
2003	1499957463.55187
2004	1901968384.87725
2005	2014209306.82521
2006	2086548220.37883
2007	2154441817.37984
2008	2167644510.79875
2009	2015191249.43576
2010	2454119116.23781
2011	2550468409.45465
2012	2369381729.81496
2013	2243816053.05009
2014	2272235268.63039
2015	2221717708.63459
2016	1979283440.54843
2017	2166425760.34976
2018	2413721568.81976
2019	2330810140.23507
2020	2073575759.70717
2021	2346092293.55164